DEVELOPMENT OF AN AMPEROMETRIC SENSOR FOR POTASSIUM IONS

Marcos F. S. Teixeira, Alex S. Lima, Patricia Monteiro Seraphim, Nerilso Bocchi

Abstract

Hollandite-type manganese oxides are nanofibrous crystals with sub-nanometer open tunnels that provide a unique property for sensing applications. Sensor based on hollandite-type manganese oxide was investigated for amperometric detection of potassium. With an operating potential of +0.63 V versus SCE, potassium ions produce oxidation currents at the sensor, which can be exploited for quantitative determinations. The amperometric signals are linearly proportional to potassium ions concentration in the range 2.7 × 10−4 to 9.1 ×10−4 mol l−1 with a correlation coefficient of 0.9990. The construction and renewal are simple and inexpensive.

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Paper Citation


in Harvard Style

F. S. Teixeira M., S. Lima A., Monteiro Seraphim P. and Bocchi N. (2008). DEVELOPMENT OF AN AMPEROMETRIC SENSOR FOR POTASSIUM IONS . In Proceedings of the First International Conference on Biomedical Electronics and Devices - Volume 1: BIODEVICES, (BIOSTEC 2008) ISBN 978-989-8111- 17-3, pages 198-201. DOI: 10.5220/0001054001980201


in Bibtex Style

@conference{biodevices08,
author={Marcos F. S. Teixeira and Alex S. Lima and Patricia Monteiro Seraphim and Nerilso Bocchi},
title={DEVELOPMENT OF AN AMPEROMETRIC SENSOR FOR POTASSIUM IONS},
booktitle={Proceedings of the First International Conference on Biomedical Electronics and Devices - Volume 1: BIODEVICES, (BIOSTEC 2008)},
year={2008},
pages={198-201},
publisher={SciTePress},
organization={INSTICC},
doi={10.5220/0001054001980201},
isbn={978-989-8111- 17-3},
}


in EndNote Style

TY - CONF
JO - Proceedings of the First International Conference on Biomedical Electronics and Devices - Volume 1: BIODEVICES, (BIOSTEC 2008)
TI - DEVELOPMENT OF AN AMPEROMETRIC SENSOR FOR POTASSIUM IONS
SN - 978-989-8111- 17-3
AU - F. S. Teixeira M.
AU - S. Lima A.
AU - Monteiro Seraphim P.
AU - Bocchi N.
PY - 2008
SP - 198
EP - 201
DO - 10.5220/0001054001980201